linux-kernel - Re: [PATCH] of: Turn of_match_node into a static inline when CONFIG

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Message-ID: <3619654.tQqiI1EfTB@wuerfel>
Date:	Tue, 11 Feb 2014 21:06 +0100
From:	Arnd Bergmann <arnd@...db.de>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:	Josh Cartwright <joshc@...eaurora.org>,
	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	Grant Likely <grant.likely@...aro.org>,
	Rob Herring <robh+dt@...nel.org>
Subject: Re: [PATCH] of: Turn of_match_node into a static inline when CONFIG_OF isn't set

On Tuesday 11 February 2014 19:29:19 Geert Uytterhoeven wrote:
> On Tue, Feb 11, 2014 at 7:08 PM, Josh Cartwright <joshc@...eaurora.org> wrote:

> Ideally, all xxx_device_id look like
> 
>     struct xxx_device_id {
>             ... /* bus-specific ID information */
>             kernel_ulong_t driver_data;
>     };
> 
> This may be formalized in some way, using a base class, but thay may
> require reordering the fields, like:
> 
>     struct base_device_id {
>             kernel_ulong_t driver_data;
>             long id[0];
>     };
> 

You can't reorder the fields because they are shared with user
space in form of the module-init-tools.

	Arnd
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